Mark & Science Bob show you 5 easy science experiments you can do with stuff you'll find around your house.
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Mark teams up with MrBeast to plant 20,000,000 trees and combat climate change!
Can Mark build a sattelite worthy of space travel?
Mark gives his neighborhood crows the ultimate test of their intelligence.
Mark de-mystifies 7 scientific mysteries you never knew you didn't know!
Mark explores if it's possible to charge a car using lemons as a battery.
Mark took a field trip to Disneyland to prove the power of lasers!
Mark built the world's smallest NERF gun, and the outdid himself 4 more times.
Turns out that the best defense against drones is air!
Part 5! Porch pirates aren't the only ones who need to fear the Glitterbomb now.
Can Mark's squirrels beat his upgraded obstacle course?
Part 4! It's up to Mark to defend the holidays from package thieves, once again.
Mark sets out to discover if someone would sink or float if they swam in a pool filled with water balls.
Mark built an air horm large enough to shatter glass
Mark attempts to beat a world record, and surprise a very special fan!
Mark dropped a car on the world's largest trampoline to test the limits of mechanical engineering!
Sometimes a standard car honk is too aggressive, so Mark made his own "courtesy" horn.
Mark tests his pet octopus' survival skills & puzzle-solving abilities
Mark build the world's largest toy catapult! Here's how he did it.
Can Mark safely drop an egg from space without it cracking from the fall?
Mark spent 3 years building the fastest puzzle-solving robot known to man!
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